‘Sabotage’: What we know about the Nord Stream gas leaks and who was behind them
The EU has declared three leaks in two Russia-Germany gas pipelines to be the work of sabotage and suspicion has fallen on Russia.
Some commentators have suggested the leaks are linked to the Ukraine war, though the Kremlin has described the accusations it was behind them as “predictable” and “stupid”.
Here is what we know about what happened to Nord Stream 1 and 2, who could have been responsible and what’s being done about it.
What happened and where
On Monday morning, at around 2am local time, bubbles are thought to have started erupting on the surface of a section of the Baltic Sea between Sweden and Poland, about 14 miles (23km) southeast of Denmark’s Bornholm Island.
That morning, it was reported that pressure in the Nord Stream 2 pipeline had dropped overnight from 105 bars to 7 bars, indicating a leak.
The Nord Stream 2 pipe runs for 764 miles (1,230km) from Russia through the Baltic Sea to Germany and had been due to carry billions of cubic feet of gas to Europe until Russia invaded Ukraine and Germany refused to grant the pipeline’s operators a licence, leaving it mothballed.
Denmark scrambled military aircraft to look for signs of a leak and identified an area of disturbed sea, which they designated a danger to shipping.
The time of the leak was confirmed by readings taken by seismologists in neighbouring countries, who registered the equivalent of an earthquake magnitude of 1.8, which they triangulated to have occurred at almost exactly the same spot as the leak was bubbling to the surface.
About 17 hours after the Nord Stream 2 reading was taken, a second reading was recorded by seismologists northeast of Bornholm, indicating another incident.
Shortly after, Nord Stream AG, the operator of the Nord Stream 1, said it was looking into causes of a drop in pressure in the pipeline.
Again, seismologists’ readings located the incident to a specific location – around 34 miles (55km) northeast of Bornholm Island.
The following morning, Sweden’s Maritime Authority issued a warning of two leaks in the Nord Stream 1 pipeline in its and Danish waters, bringing the total number of leaks to three.
Nord Stream 1 follows a similar but not identical route from Russia to Germany and had been used to ship Russian gas to Europe since 2011, until the outbreak of the Ukraine war.
As Europe reeled from the Vladimir Putin’s invasion, it moved to reduce its reliance on gas from Russia, and simultaneously, flows through Nord Stream 1 to Europe from Russia decreased until no gas was flowing through the pipeline.
Footage from the scene taken from a Danish plane showed frothy seas, up to a kilometre wide.
What do the experts say
Initially, the European countries nearby were cautious, saying investigation was needed to find out what had happened.
The operator of the pipelines said the leaks were “unprecedented”, but did not have an explanation for them.
The Kremlin was quick to say sabotage could not be ruled out.
In the course of Tuesday, seismologists who had recorded the incidents said their analysis indicated the tremors had been caused by explosions.
Bjorn Lund, director of the Swedish National Seismic Network, said: “There’s no doubt, this is not an earthquake.”
By Wednesday, many politicians were adamant that the damage to the pipes was caused by human activity and deliberate, rather than because of earthquakes or accidental.
Danish defence minister Morten Bodskov said on Wednesday: “Our assessment is… that the breakage on the pipes is not an accident but a deliberate act.”
The Danish and Swedish military have been observing the bubbling at the surface. Pic: Swedish Coast Guard
Who was responsible
Very early on, suspicion fell on Russia. A number of commentators asked who would profit from such ruptures in the pipelines, noting how it had the potential to affect gas prices.
Ukraine blamed Russia immediately, with presidential adviser Myhailo Podolyak saying the leak was “a terrorist attack planned by Russia and an act of aggression towards the EU”, without offering any evidence.
Gas prices soared again on Monday, largely in reaction to a threat from Moscow to sanction Ukrainian energy firm Naftogaz, raising the possibility that one of the last functioning Russian gas supply routes to Europe would close down.
But many expressed disbelief that Russia would target infrastructure that carried gas that it had sold, threatening its future revenues. Kremlin spokesman Dmitry Peskov called such accusations “predictable and… stupid”.
Yet there has been much speculation that an attack by Russia on the pipelines could be a warning to the West not to escalate the Ukraine war further.
This is because the pipelines were not operational at the time and they supplied Russian gas, so would be less likely to be seen as a further significant provocation.
Russia has been becoming increasingly frustrated that Western supplied weapons have been helping Ukraine resist Moscow’s invasion.
On Tuesday Poland’s President Andrzej Duda symbolically opened the valve of a yellow pipe belonging to the Baltic Pipe, a new system sending Norwegian gas across Denmark and the Baltic Sea to Poland, which he hailed as ending “Russian domination in the gas sphere”.
Some commentators have pointed out that while the gas leaks erupted in Denmark and Sweden’s Exclusive Economic Zones, they were outside their territorial waters, and therefore could be classed as having happened in international waters, making retaliation more complicated.
Others have cited the fact that there are significant networks of piping under the North Sea that could be vulnerable to attack. If the cause of the leaks is proven to have been an attack, it would reveal the ease with which undersea infrastructure can be targeted.
The method used by any potential saboteurs is far from clear. Russia has submarines which Western experts say are equipped to attack international internet cables, but there are suggestions the vessel was out of range at the time. Others say deep sea divers, travelling from the nearby Russian exclave of Kaliningrad, could have planted a device.
How will we find out
Experts say they expect that navies from surrounding countries will send teams with specialist experience into the area to carry out investigations.
Mr Bodskov said the Danish military had increased its presence within and around the area of Bornholm and they would be “doing everything within their power to get this clarified which is happening in close collaboration with our partners”.
But he said it may take some weeks.
“If you listen to the experts about how much gas there is the pipes and how long it will take before the pressure drops, then the reality is that might take a week, 14 days before it is calm enough in the area to actually see what has happened,” he added.
Any investigation is likely to look closely at damage to the pipes, which, at around 1,153mm in diameter with 34mm thick steel walls, surrounded by, in some cases, more than 110mm of concrete, would be difficult to crack.
Investigations are likely to look at damage to the pipe which is 34mm thick steel and covered, when underwater, with more than 100mm of concrete
Peter Faulding, one of the foremost British underwater forensic investigators, whose Specialist Group International has been involved in numerous undersea investigations carried out by UK police, said he expects the initial investigation to involve remotely operated vehicles (ROVs), which are also known as drones.
“People will be very wary about putting divers near it because… you’ve got a large amount of gas coming out,” he told Sky News.
“I would say they’d be using remote operated vehicles to go down. An ROV, because they have manipulators on the front. If there was any debris, the manipulator… can retrieve the evidence and an ROV will give crystal clear pictures without putting a diver in jeopardy.
“A lot them are autonomous now. They can send them down without a cable and they can actually pick things up off the sea bed.
“You would see what it was. If it was done with explosive, it will be very rough. There’ll be residues. There’d be fragments.“
“From that, they can carry out appropriate forensic tests to see what explosive it was, if an explosive has been used.”
Mr Faulding, who has previous military experience and carries out consultancy work for the energy industry, said once it was safe, because the pipelines are at a depth of about 70m, the navies would probably put down divers operating out of a diving bell, but they would have to breathe a special mixture and would work in a similar way to those who carry out work on undersea oil facilities.
He said it should not be difficult to work out which explosive, if any, had been used, but it would be extremely difficult, if not impossible, to work out who carried out an attack.
What are the consequences
In the immediate aftermath, European leaders expressed concern and said they would work to find out what had happened.
The gas markets remained volatile, but experts said that much of Tuesday’s volatility was due to fears that Russia would stop shipping gas through Ukraine, rather that because of the possibility of an attack on Nord Stream 1 or 2.
Nonetheless, experts said that the leaks had added to the uncertainty that has been fuelling much higher gas prices this year than in previous years.
Norway has a substantial gas and oil industry network across the North Sea, supplying much of Europe
Gas analyst Tom Marzec-Manser told Sky News: “The market opened bullishly yesterday in response to the Nord Stream stuff. But then it jumped significantly when that Ukraine development happened, when Gazprom threatened the sanctions. That actually was a larger wedge of the gains yesterday. But it’s definitely all part and parcel of the… loss of yet more Russian gas (being) the main driver to a 27% jump yesterday in wholesale prices.”
Despite doubts in the gas industry that any potential attacks could spread, Norway’s state oil company, Equinor, said it would raise its level of preparedness.
The alert was raised overnight and applies to all of Equinor’s facilities.
Norway is a major producer of offshore oil and gas and its energy exports have surged as European countries scramble to find alternatives to Russian energy supplies.
Norwegian Prime Minister Jonas Gahr Store said: “We are concerned with taking good care of the safety of our own oil and gas installations, and we have stepped up the state of preparedness regarding them today.”
Royal Norwegian Navy officer Lieutenant Commander Tor Ivar Strommen warned that there could be attacks on Norwegian energy exports “in the next half year”.
NATO and the European Union stressed the need to protect critical infrastructure and warned of a “robust and united response” should there be more attacks.
Mr Strommen told Reuters: “The Norwegian government has to realise that by far the most important strategic object in all of Europe now is the energy or gas imports from Norway.
“If those deliveries should be cut or stopped or reduced by a large amount, this would cause a complete energy crisis in Europe.”
It’s been more than a year since a ceasefire was agreed in Lebanon, but data shows that the truce between Israel and Hezbollah is more fragile than ever.
The independent conflict monitoring organisation ACLED has recorded 1,846 Israeli attacks on Lebanon since the ceasefire began.
On average, only two days of each month have not seen an Israeli attack.
The bombings have grown more frequent in recent weeks, with an average of six per day so far in December, or one every four hours – the fastest pace of attacks since March.
Israel says it is targeting Hezbollah military infrastructure
The ceasefire deal requires both sides to withdraw from southern Lebanon, the area south of the Litani river.
The UN mission in southern Lebanon, UNIFIL, says the agreement has been violated more than 10,000 times – once every 53 minutes.
That includes the attacks monitored by ACLED, as well as more than 2,500 IDF ground activities and over 7,800 violations of Lebanese airspace.
It also includes the discovery, by UNIFIL, of more than 360 weapon and ammunition caches south of the Litani river.
Israel says that these caches are evidence that Hezbollah is seeking to rebuild its military infrastructure in southern Lebanon, an allegation denied by both Hezbollah and UNIFIL.
“None of these weapon caches were guarded,” says UNIFIL deputy spokesperson Kandice Ardiel. “They had no obvious signs of recent use and were presumably abandoned. Many were even destroyed already, or half-destroyed.”
An IDF spokesperson said that Hezbollah’s attempts to rebuild its military infrastructure in southern Lebanon “are not open to interpretation”.
“In the absence of sufficient enforcement by UNIFIL, and out of commitment to the security of the Israeli civilians, the IDF continues to operate in a focused manner against Hezbollah’s restoration attempts,” the spokesperson said.
At least 127 civilians have been killed by Israeli attacks since the ceasefire began, according to the UN.
Israel argues that the ceasefire agreement requires Hezbollah to disarm in all parts of Lebanon, not just the south. Hezbollah disputes this, and says it will not consider full disarmament until Israel withdraws entirely from Lebanese territory.
Israel has established five military bases inside Lebanon
This withdrawal was supposed to take place by 27 January 2025, a deadline that was later extended to 18 February.
But instead of withdrawing from its Lebanese bases, Israel began cementing its presence.
Sky News has confirmed, based on satellite imagery, that Israel started construction on a new base, shown below, between 8 and 18 February – within days of the withdrawal deadline.
Israeli base on Tzivoni ridge, Lebanon, 18 November 2025. Pic: Planet Labs PBC
Israel retains control of four other bases on Lebanese territory, scattered along hilltops near the border.
“We need to remain at those points at the moment to defend Israeli citizens, to make sure this process is complete and eventually hand it over to the Lebanese armed forces,” IDF spokesman Nadav Shoshani said in February.
Lebanon has raised complaints with the UN about these bases, as well as Israel’s recent extension of its border wall. The UN says that two sections of the wall cross into Lebanese territory, putting around one acre on the Israeli side.
Israeli border wall under construction near Yaroun, 18 November 2025. Pic: Planet Labs PBC
Sky News asked the IDF whether it accepted the UN’s findings, but did not receive a response to this question.
In the image below, part of the newly constructed wall can be seen passing between border posts, highlighted in green, into Lebanese territory.
A newly-constructed portion of Israel’s border wall is seen crossing into Lebanon, with border posts highlighted. Pic: AP
Construction of the wall resumed over summer, having been halted since hostilities erupted in October 2023. Based on satellite imagery, Sky News estimates that a total of 12km of wall have been erected in recent months.
The continued presence of Israeli forces has hampered reconstruction efforts. More than 64,000 Lebanese people remain displaced from their homes.
Sky News visited one of the towns that sits in view of the Israeli base on Mount Balat. The town, Aita al Chaab, has been almost entirely destroyed.
Wreckage in the border town of Aita al Chaab
Satellite imagery, taken on 24 November, shows the town in ruins. Out of 326 buildings in the town centre, 293 (91%) have been destroyed.
Since the ceasefire began, the destruction has continued and has spread to the Aita al Chaab’s outskirts.
“Anyone who comes to rebuild is attacked [by Israel],” one resident told Sky News.
The Data and Forensics team is a multi-skilled unit dedicated to providing transparent journalism from Sky News. We gather, analyse and visualise data to tell data-driven stories. We combine traditional reporting skills with advanced analysis of satellite images, social media and other open source information. Through multimedia storytelling we aim to better explain the world while also showing how our journalism is done.
EU leaders will meet in Brussels today to try to agree the release of €210bn (£184bn) to help fund Ukraine’s war with Russia.
The money, which comes from Russian assets frozen after Moscow’s full-scale invasion of Ukraine in 2022, is mostly held in the Belgian-headquartered clearing house, Euroclear.
The money is seen as vital to Ukraine’s ability to keep fighting, because the country faces bankruptcy in early 2026 if it doesn’t receive more international assistance. That means Kyiv would no longer be able to pay soldiers, police and civil servants or buy weapons to defend itself.
Volodymyr Zelenskyy, Sir Keir Starmer, French President Emmanuel Macron and German Chancellor Friedrich Merz. Pic: Reuters
Last night, Volodymyr Zelenskyy, who is expected to brief the EU leaders today, wrote on X: “The result Europe produces – must make Russia feel that its desire to continue the war next year is pointless, because Ukraine will have support. This rests entirely with Europe.”
The Belgian government has so far prevented the move amid fears it will expose the small country to Russian legal action in the future.
The EU is racing to find solutions to Belgium‘s concerns, including passing an emergency bill that secures the sanctions against Russia indefinitely, superseding the need to renew them every six months and thereby insulating it from veto votes from Russian-leaning EU member states like Hungary and Slovakia.
Belgium also wants guarantees that all EU members will share any financial cost of Russian action against it.
Why the push to use Russian assets?
The US, which has so far given billions of dollars to Kyiv, is losing interest under Donald Trump and can no longer be relied upon for financial support.
Previously, the EU had been giving the interest generated from the frozen assets to Ukraine, but was worried it might destabilise the Eurozone economy if it touched the assets itself.
That has changed, however, as Ukraine’s need has become more acute and fears over Russia’s wider imperialist ambitions have grown in recent months.
This unlocking of seized Russian assets is also being seen as a way to buy Brussels more leverage in peace negotiations, as well as reducing Kyiv’s dependency on Washington.
Read more:
South Africans fighting for Russia
Russia trying to ‘bully’ UK and allies
Friedrich Merz. Pic: Reuters
German Chancellor Friedrich Merz, who has been leading the campaign to release the funds, warned that “Europe would be severely damaged for years” if they fail to pass the vote and “this step is not about prolonging the war but about bringing the war to an end as soon as possible”.
In short, the consequences of using the frozen assets are now considered less risky than the consequences of not taking this action.
What’s at stake?
Trump wanted the money to be invested in two US investment funds, something the EU rejects. The US president has recently been scathing of European leaders, and the EU sees Thursday’s meeting as an opportunity to show its strength and unity.
In theory, the EU could pass the policy by majority vote, thereby sidelining the Belgian government, but officials are reluctant to go down this path for fear of alienating Belgium and causing a diplomatic rift in the alliance.
Much is riding on the meeting. If the EU fails to pass the vote, its credibility will take a severe blow. It will likely become even more irrelevant in peace talks, and Vladimir Putin might look to take advantage of a divided Europe.
One of the alleged gunmen in the killing of 15 people on Bondi Beach has been charged.
Naveed Akram, 24, faces 59 counts, including 15 of murder and a terror charge.
The other alleged attacker, his 50-year-old father Sajid, died at the scene in Sydney.
The charges came as people gathered for funerals three days after Sunday’s terror attack shocked Australia and intensified concerns about rising antisemitism.
Some 22 victims remain in hospital following the shooting, carried out at an event marking the start of the Jewish celebration of Hanukkah.
People look at flowers laid out for the victims. Pic: Reuters
At the first of the funerals, relatives mourned the death of British-born Rabbi Eli Schlanger, a 41-year-old father of five, who organised the Chanukah by the Sea event.
Often speaking through tears, his father-in-law, Rabbi Yehoram Ulman, expressed his “biggest regret” that he “could have done more” to tell him “how much we love him”.
“I hope he knew that. I’m sure he knew it,” he added. “But I think it should’ve been said more often.”
Relatives of Rabbi Eli Schlanger next to his coffin during his funeral. Pic: Reuters
The father of 10-year-old victim Matilda, whose surname has been withheld at her family’s request, spoke at a vigil on Tuesday night.
Local media reported him as saying: “We came here from Ukraine… and I thought that Matilda is the most Australian name that can ever exist.
“So just remember the name, remember her.”
A photo of Matilda. Pic: Reuters
Read more: Who were the suspected gunmen?
Police have said the two alleged gunmen – who were shot by officers – were motivated by Islamic State ideology.
A recent trip to the Philippines is under investigation. The older Akram used an Indian passport to travel, while his son used an Australian one.
The Akrams stayed at the GV Hotel in Davao from 1 November to 28 November, according to a source, who said police had visited on Wednesday.
The pair are said to have only left their rooms for meals and no one was seen visiting them.
Davao is in an area associated with Islamic extremism but a spokesman for the president of the Philippines said he rejected the claim the country is an “ISIS training hotspot”.
New South Wales to debate gun reforms
The Australian government and intelligence services have come under pressure because the alleged attackers were legally able to acquire the high-powered rifles and shotguns used in the attack.
Prime Minister Anthony Albanese has vowed to toughen the country’s gun laws after its deadliest mass shooting in three decades, and the state parliament in New South Wales will reconvene next week to discuss reforms.
They include capping the number of guns allowed by a single person and making some shotguns harder to access.
State premier Chris Minns told a news conference: “We’ve got a monumental task in front of us. It’s huge.
“It’s a huge responsibility to pull the community together.
“We need a summer of calm and togetherness, not division.”
Mr Albanese has vowed to work with the Jewish community to “stamp out and eradicate antisemitism”. The prime minister has been accused of not doing enough to prevent its spread since the war in Gaza began two years ago.
Fellow world leaders have expressed their shock and anguish since the attack, including British Prime Minister Sir Keir Starmer, who hosted a Hanukkah event at Downing Street on Tuesday.
And speaking at the White House last night, US President Donald Trump said: “We join in mourning all of those who were killed, and we’re praying for the swift recovery of the wounded.”
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